U1000 code in owner complaints
Code U1000 is named in 27 US owner complaints, 1 of them (4%) after a crash. Models: 17, model years 2001–2019.
There is little data for this code or its meaning is ambiguous, so this page is not indexed.
What the code means
This is a manufacturer-specific code: the meaning depends on the make and sometimes on the year.
How to read U1000: the letter U means network communication between modules; the second digit 1 marks a manufacturer code whose meaning is set by the make; the last three characters 000 identify the specific fault.
Codes for engine, transmission, transfer case and hybrid system modules. When valuing an auction car the key question is whether the fault is crash related (cut wiring, damaged radiator) or a known defect of the model.
Key figures
- Complaints with this code
- 27
- after a crash
- 1 (4%)
- Models
- 17
- Model years
- 2001–2019
Which models and years
Models whose owners name this code (17). Years link to the model year problems page.
| Model | Years | Complaints |
|---|---|---|
| Nissan Altima | 2002, 2012, 2019 | 3 |
| Nissan Murano | 2005 | 3 |
| Nissan Pathfinder | 2007, 2008 | 3 |
| Nissan Rogue | 2010, 2015, 2016 | 3 |
| Nissan Leaf | 2015 | 2 |
| Nissan Xterra | 2007 | 2 |
| Buick Regal | 2001 | 1 |
| Chevrolet Equinox | 2011 | 1 |
| Chevrolet Malibu | 2003 | 1 |
| Chevrolet Trailblazer | 2003 | 1 |
| Dodge Charger | 2006 | 1 |
| Infiniti G35 | 2004 | 1 |
| Infiniti QX80 | 2017 | 1 |
| Mazda Mazda3 | 2013 | 1 |
| Nissan Armada | 2006 | 1 |
| Nissan NV | 2018 | 1 |
| Saturn L300 | 2005 | 1 |
Components named together with the code
Component as the owner filed it (one complaint can list several).
Complaints by model year
What to do if an auction car has this code
- Separate crash damage (wiring, radiator, mounts) from known model defects: see the model year problems page.
What owners report
Excerpts of owner complaints in the original wording. Owner statements not verified by the regulator; personal data removed.
On november 6, 2015 around or about 7:00pm my v6 2008 nissan pathfinder service engine light turned on while in first gear in mostion; the suv engine and transmission turned off had no brakes and had a fender bender while in motion , had the suv towed home and checked the code on the obd and it read code: U1000…
[dealer] dealership was unable to reproduce the problem and found only old codes in the system. The codes listed on the receipt were FFD high key cycle counts, C118A, U1000 (ABS, EV/HEV), P3195, B29C1 However, after I saw similar complaints related to the battery in this car and told them about it, they found that the…
The technician's notes state: "FOUND NO SIGNAL FROM BCM TO IPDM TO START VEHICLE." I have since learned that this is a known manufacturer issue, documented in Nissan Technical Service Bulletin (TSB) NTB16-024, titled "No Start, MIL ON, DTC U1000, U1010, C110A, P1614, P1615, P1630, P1631 (Reprogram BCM or Replace…
Sources: public official US data (owner complaints) and the SAE J2012 standard. Complaints are owner statements not verified by the regulator. A code from a complaint does not replace a scan tool diagnosis. Data updated 2026-11-10.